Base attribute driver class
Bases: object
Dependent on the driver, clean up and destroy any invalid or incomplete cached images
Configure the driver to use the stored configuration options Any store that needs special configuration should implement this method. If the store was not able to successfully configure itself, it should raise exception.BadDriverConfiguration
Removes all cached image files and any attributes about the images and returns the number of cached image files that were deleted.
Removes all queued image files and any attributes about the images and returns the number of queued image files that were deleted.
Removes a specific cached image file and any attributes about the image
image_id – Image ID
Removes a specific queued image file and any attributes about the image
image_id – Image ID
Returns a list of records about cached images.
The list of records shall be ordered by image ID and shall look like:
[
{
'image_id': <IMAGE_ID>,
'hits': INTEGER,
'last_modified': ISO_TIMESTAMP,
'last_accessed': ISO_TIMESTAMP,
'size': INTEGER
}, ...
]
This crafts an absolute path to a specific entry
image_id – Image ID
cache_status – Status of the image in the cache
Return the size of the image file for an image with supplied identifier.
image_id – Image ID
Return a tuple containing the image_id and size of the least recently accessed cached file, or None if no cached files.
Returns a list of image IDs that are in the queue. The list should be sorted by the time the image ID was inserted into the queue.
Returns True if the image with the supplied ID can have its image file cached, False otherwise.
image_id – Image ID
Returns True if the image with the supplied ID has its image file cached.
image_id – Image ID
Returns True if the image identifier is in our cache queue.
image_id – Image ID
Open and yield file for reading the image file for an image with supplied identifier.
image_id – Image ID
Open a file for writing the image file for an image with supplied identifier.
image_id – Image ID
Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.